# main.py
from add import add
from subtract import subtract
from multiply import multiply
from divide import divide

print("Welcome to the calculator!")
print(add(5, 3))
print(subtract(5, 3))
print(multiply(5, 3))
print(divide(5, 3))
print(divide(5, 0))  # Test divide by zero

# 修改 main.py 内容
print("This is the conflict practice branch!")
